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OpenStudy (anonymous):
How many solutions does the system of equations have? y = 5x + 7 and 3y - 15x = 18 a.one b. two c. infinitely many d. none
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OpenStudy (kropot72):
If you put each equation into the form y = mx + b the answer should be clear.
OpenStudy (anonymous):
They have the same slope...
OpenStudy (anonymous):
is it 5? would that mean that it only has one solution?
OpenStudy (anonymous):
If two lines have the same slope they are parallel if they don't lie on top of each other.
OpenStudy (anonymous):
so it does'nt have a solution at all then?
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OpenStudy (anonymous):
Do parallel lines cross?
OpenStudy (anonymous):
no
OpenStudy (anonymous):
Then no, there is no solution.
OpenStudy (anonymous):
okay thank you (:
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